Track IWallpaperManager interface changes

import android.app.IWallpaperManagerCallback;

import android.app.KeyguardManager;

import android.app.NotificationManager;

import android.app.WallpaperManager;

import android.content.Context;

import android.hardware.fingerprint.FingerprintManager;

import android.os.Bundle;

import android.os.IBinder;

import android.os.RemoteException;

import android.os.ServiceManager;

import com.android.ims.ImsManager;

import com.android.settings.Settings.FingerprintEnrollSuggestionActivity;

import com.android.settings.Settings.FingerprintSuggestionActivity;

        IBinder b = ServiceManager.getService(Context.WALLPAPER_SERVICE);

        IWallpaperManager service = Stub.asInterface(b);

        try {

            return service.getWallpaper(mCallback, new Bundle()) != null;

            return service.getWallpaper(mCallback, WallpaperManager.FLAG_SET_SYSTEM,

                    new Bundle(), mContext.getUserId()) != null;

        } catch (RemoteException e) {

        }

        return false;